Fifth Door

Active

Create and play games with AI

Fall 2025Founded 20253 peopleSan Francisco, CA, USA

↻ Pivot / rename signal

This company has previously operated under “Placeholder (Gaming + Gen AI)”. A rename frequently marks a pivot in positioning or product — useful raw material for variant ideas.

About

Fifth Door unlocks the power of imagination by making it easy for everyone to create, share, and play games anywhere, with anyone. We exist to stimulate the creativity, connection, and joy that people get when they play games.